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06/08/2022 11:30 am
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I have a 2007 Toyota Tundra 4.7 4x4 with 235k miles. The check engine came on for a P0430 Catalyst System Efficiency Below Threshold Bank 2. I'm think it's either just an o2 sensor or the Cat going out on it. What do you think?
The engine doesn't make any weird noises and I don't smell or hear anything out of the norm.
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